Thierry,
True, you do! (it is a very good list). I shall try to get the exact competition wording for you. They are pretty well closely aligned with normal UK IPMS Scale Model World rules, but have more flexible ruling in some areas to give the older kits a chance against the newer crop of kits.
Basically, you are allowed to detail the cockpit interior using scratchbuilt or other items, replacement seats and the addition of seat belts. PE parts are not allowed (canopy detail sets, for example). The only vague area here is that a model that is deemed to have extensive areas of scratch built detail is not allowed - so knowing 'how far to go' is a bit of a judgement call in this area!
You can rescribe the model, and thin down parts to a scale thicknes (such as trailing edges, etc), but you are not allowed to alter the planform or correct the overall shape of the kit parts. Open undercarriage bays, etc, can be 'boxed-in' and detailed. Engine blanks/covers can be fitted. Different markings and foil finishes are allowed. Different weapon loads are allowed.
Any major re-shaping of kit parts (including 'cross-kitting of parts to improve the shape), extensive scratch building or fitting of different after market detail parts or sets to improve accuracy or alter the aircraft mark constitues a modified or converted kit. If the model is completed as a visibly different mark to the intended version, then that also is not allowed (for instance, a Spitfire Mk.I completed as a Mk.II would be OK, as the aircraft are essentially the same, however, a Mk.I Spitfire completed as a Mk.XII would not be).
That, from memory, just about concludes the main basic kit class rules for this local IPMS model expo contest - there are few other to go with it, but they mainly cover how you are allowed to display the model. I can understand, and appreciate why the rules have been formulated that way, but the boundaries are down to the judges discretion. So, whilst it may be possible to drive the proverbial 'bus' through some of the rules regarding the amount of detail to use, others are a bit more of a tough call to make.
In terms of specific information required for my build, good line drawings for the RF-4C would help me, along with cockpit line drawing/pictures in order to determine what level of detail is required here (I really have no idea about what detail lives behind/in-between the seats/instrument panels, or the front cockpit windcreen coaming panel detail?)- I am just about OK with the ejection seat information. I noticed in your tweaks list that you refer to certain numbered aircraft panels - this is OK if you already have access to, or know, what - and where - all of the aircraft panels are in the first place! (I worked out from your taxt that it is immediately behind the aft canopy) - so a panel chart wold also assist me. Jet pipe interior and undercarriage bay details are another area that I may need to address, otherwise, I think that I can probably get by (with a little help from my LSP jet experts

). I am considering using the Kits large centre-line fuel tank and AN/ALQ-119 ECM pod as equipment fit - mainly because I don't think that I can bend the rules enough to fit anything else, and also to make the aircraft look 'busy'
Many thanks for your assistance Thierry
Best regards
Derek
As I wrote in the introduction of each tweak list, you take what you want!
Regarding the Fotocut set, I'm glad Fred clarified the picture! However, I didn't meant the problem was linked to the fact that the newer release was perfectly scaled whereas the older was incorrect. In fact, there're some dimensions issues in both kits (even if the more recent is far better). This means that a correctly scaled detail set (such as this one) needs to be "tuned" to be adapted to both models!
Derek, could you give me more info regarding what you need as well as the restrictions linked to the build as I've a lot of information regarding Phantoms and would like to know what you precisely need!
Cheers.